C18-70 Isoparaffin
AKA “Mineral Oil, Paraffin Oil
Emollient
Ingredient Facts
C18-70 isoparaffin
AKA: Mineral Oil, Paraffin Oil
Emollient · Emollient · EWG: 1
Synthetic
Emollient
Skin Conditioner
Barrier Support
Clean
Alkanes, C18-70-iso
CAS #
246538-80-7
Form
Oil
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Locks In Moisture
Traditional Use
A synthetic hydrocarbon developed in the 20th century as a light, spreadable emollient and solvent for cosmetics. Created as an alternative to natural oils.
Skin Types
all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
100%
0%100%
Reg. Limit
FDA OTC limit: 100% (Skin Protectant). 50-100% standalone; 30-35% when combined with colloidal oatmeal Source: FDA OTC Monograph, 21 CFR 347.10.
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR